Helium

Atomic Structure
Symbol	He
Atomic Number	2
Atomic Mass	4.002602 g/mol
Periodic Table
Group	8
Row / Period	1
Element Category	Noble gas
Chhapa
Ek Helium atom

Because it is very light, helium is the gas of choice to fill airships such as the Goodyear blimp

Helium laser

Helium ek chemical element hae, jiske chemical symbol He aur atomic number 2 hae. Ii bina rang ke ek gas hae, jon ki duusra element re react nai hoe hae. Iske halluk hoe ke kaaran, iske baloon me kaam e lawa jaawe hae.

Chhapa ke gallery

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  Superfluidity
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  Diagram of He-4
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  Why He$_{2}$ is unbound
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  Discharge tube
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  Glowing helium
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  spectrum tube: Helium ++
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  spectrum tube: Helium